Modeling the Semantics of a Class
Determine the responsibilities of each class:
- A responsibility refers to a contract of a type or class. It is shown as a note connected to the class, or in an extra compartment in the class icon
- Depict the semantics of the class as a whole by the use of structured text within a note attached to the class
- Show the body of each method using structured text or pseudo code or programming language itself within attached to the operation by a dependency relationship
- Develop a state machine for the class. A state machine refers to a behavior which specifies the sequences of states that an object undergoes in its lifetime in response to events, along with its responses to those events
- Determine the responsibilities of each class:
- Depict internal structure of the class
- Indicate a collaboration that contains the class.
- Collaboration is an association of roles and other elements, which work together to implement a behavior/functionality
- Collaboration consists of a structural part as well as a dynamic part. Collaborations can be used to specify all aspects of the semantics of a class
- Depict the pre and post conditions of each operation as well as the invariants of the class by using a formal language
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